package day01;

public class test2 {

	public static void main(String[]args) {
		
		//char letter = 'a';
		//int num = 65;
		//char sex = '男';
		//char定义变量：变量值：1.'男'字符2.十进制数
		char letter = 97;
		//letter = (char)num;
		//System.out.println(letter);
		char letter1 = 'a';
		char letter2 = (char)(letter1-32);//(letter1-32) 为int型
		System.out.println(letter2);
	}
	
}
